seqlock: Better document raw_write_seqcount_latch()
authorPeter Zijlstra <peterz@infradead.org>
Wed, 27 May 2015 01:39:36 +0000 (11:09 +0930)
committerRusty Russell <rusty@rustcorp.com.au>
Thu, 28 May 2015 02:02:04 +0000 (11:32 +0930)
commit6695b92a60bc7160c92d6dc5b17cc79673017c2f
treedaf0fd1de6cc7201be163084654a6edc0dbcc3e5
parentd72da4a4d973d8a0a0d3c97e7cdebf287fbe3a99
seqlock: Better document raw_write_seqcount_latch()

Improve the documentation of the latch technique as used in the
current timekeeping code, such that it can be readily employed
elsewhere.

Borrow from the comments in timekeeping and replace those with a
reference to this more generic comment.

Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: David Woodhouse <David.Woodhouse@intel.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Reviewed-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Acked-by: Michel Lespinasse <walken@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
include/linux/seqlock.h
kernel/time/timekeeping.c